Computer went to sleep, now black monitors when starting up

[zevelo12]

Motherboard: ASUS Z97-AR
PSU: Corsair CX750M
CPU: Intel I-5 4690k w/ Hyper 212 EVO Cooler
GPU: ASUS ROG STRIX GeForce® GTX 1080 TI 11GB OC Edition
Monitors:
Middle: ASUS ROG Swift PG279Q DP Connection
Left and Right: ASUS VG278HV HDMI Connection

I have had all of these parts for about 2 years. I just bought the 1080ti yesterday and the ROG monitor earlier this week and did some major cable management behind the desk. After installation of the gpu, I powered up and everything worked fine for a couple hours. Installed the drivers, messed with my desktop backgrounds, and tested a couple games. All great. Then when I went to shut down, I accidentally clicked sleep. I waited for it to sleep then clicked the mouse to power it on. The computer powered up, the graphics card RGB worked like normal, albeit the fans sounded louder than usual, but the monitors did not power up. My keyboard and mouse RGB lit up as well. So I did a forced shutdown and started back up. This time the computer powered up the same way except my mouse and keyboard did not light up. When I clicked some mouse buttons, there was a very faint rgb light as I was clicking almost as if it was struggling to get power to the mouse.

I am pretty green when it comes to technical issues. I go to google but if it starts to get complicated then my head starts to spin a little. Not to mention, I am now restricted to my phone to troubleshoot.

Does this sound like a motherboard issue, GPU, power supply? I am at a loss since everything was working fine. Unfortunately, I have not had a chance to do much troubleshooting yet as this happened extremely late and I am at work now, but I am off the next couple days and am hoping to have a few different directions to try out to fix. Again, I am pretty much a noob past being able to name all the parts and install them so any help is greatly appreciated. I can take the GPU back to where I bought for an easy exchange if that is the issue. I also plan on doing a full parts upgrade later this month, but I would like to be able to use my computer in the meantime.

I appreciate your help!

 

[zevelo12]

Update: took it to a local computer shop. They plugged it in, started up just fine ran benchmarks for the gpu and cpu which performed fantastically. Brought it back home and plugged everything in and still having the same issue. I’m lost

 

[norcalsc]

Try a different wall outlet you may be having electrical issues at home

 

[smorizio]

make sure the bios is update. in the bios check the primany display settings and muilt monitor display, set the bios to peg for the video card or ipgpu for onboard video port to be the first vidoe output.

 

[zevelo12]

Try a different wall outlet you may be having electrical issues at home

Tried a couple outlets. With and without extension cords, surge protectors etc. same issue on all combinations. I was thinking of picking up a voltage regulator just to ensure. But I’ve had no power problems in the year I’ve been in this office and the only change is the 1080ti

 

[zevelo12]

Update 2: took the gpu out, plugged in my 2k monitor to the mobo display port and powered up. Mouse and keyboard powered up however I still cannot get a display to pick up a signal. My mobo light is on under “boot_device_led” however the same thing was happening at the shop and he was able to clear it. I’ve been having to so force shutdowns and the guy at the shop said something about the motherboard thinking the hd was having issues. I restored windows 3 days ago.

 

[zevelo12]

Update 3: so I got it working when I removed the gpu, removed the CMOS battery and wait 5 minutes. Then I boot up using the integrated graphics without the gpu plugged in. Go to the bios and set XMP setting. Computer boots on the desktop and works fine. Then I shutdown, reinstall the gpu and boot up and again everything works fine. Then I shutdown and boot up once more and back to square one

 

[neatfeatguy]

I have the same MB as you do. Same issue - power on and nothing on the screen. Got a red boot device flashing LED on the MB, too. I have the OS on my SSD and two spare HDDs for storage.

Power your system off. Unplug it from the wall and move it to an easy to handle location.
Disconnect all power cables and SATA cables from any storage device (HDD and/or SSD).
Connect just the power cable and SATA cable to the OS drive.
Plug your computer back in and power it up (my computer loaded up without issues into Windows). If you have other HDD/SSDs then you need to do the following:

Power down the system again and connect any other SSDs/HDDs power cable and SATA cable.
Power up your system - hopefully it will boot up without any issues.

I went through these steps last weekend and I've had my computer powered off and back on at least a half dozen times since and I've had no further issue.